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PHYS SCI STUDY GUIDE

QuestionAnswer
Require positive and negative (opposite) charges Ionic Bonds
Require sharing of electrons Covalent Bonds
What holds atoms or ions together Chemical Bonds
What are the characteristics of a double bond? Stronger and shorter than single bonds; uses 4 electrons
Rule for writing formulas for a binary ionic compound. Use the simplest whole number ratio of cations and anions that will give an electrically neutral compound
Group number = # of Valence Electrons
What is the octet rule? Atoms like to have a noble gas configuration (Eight valence electrons)
Subscript indicates... How many of each atom or ions are present
Chemical formula tells us... Number and type of each atom in a compound
Properties of an Ionic Compound... High melting point, transfer of electrons, electrolytes
Suffix for Binary Ionic Compounds -ide
What is the metallic ion in the compound CuCl2? Cu2+
The sum of the charge between two atoms or ions must equal ____ in order for them to form a stable ionic compound. Zero
Created by: user-1705975
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